/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package studio.raptor.sqlparser.dialect.db2.ast.stmt;

import studio.raptor.sqlparser.ast.SQLExpr;
import studio.raptor.sqlparser.ast.statement.SQLSelectQueryBlock;
import studio.raptor.sqlparser.dialect.db2.ast.DB2Object;
import studio.raptor.sqlparser.dialect.db2.visitor.DB2ASTVisitor;
import studio.raptor.sqlparser.visitor.SQLASTVisitor;

public class DB2SelectQueryBlock extends SQLSelectQueryBlock implements DB2Object {


  private Isolation isolation;

  private boolean forReadOnly;

  private SQLExpr optimizeFor;

  @Override
  protected void accept0(SQLASTVisitor visitor) {
    if (visitor instanceof DB2ASTVisitor) {
      accept0((DB2ASTVisitor) visitor);
      return;
    }

    super.accept0(visitor);
  }

  @Override
  public void accept0(DB2ASTVisitor visitor) {
    if (visitor.visit(this)) {
      acceptChild(visitor, this.selectList);
      acceptChild(visitor, this.from);
      acceptChild(visitor, this.where);
      acceptChild(visitor, this.groupBy);
      acceptChild(visitor, this.getFirst());
    }
    visitor.endVisit(this);
  }

  public Isolation getIsolation() {
    return isolation;
  }

  public void setIsolation(Isolation isolation) {
    this.isolation = isolation;
  }

  public boolean isForReadOnly() {
    return forReadOnly;
  }

  public void setForReadOnly(boolean forReadOnly) {
    this.forReadOnly = forReadOnly;
  }

  public SQLExpr getOptimizeFor() {
    return optimizeFor;
  }

  public void setOptimizeFor(SQLExpr optimizeFor) {
    this.optimizeFor = optimizeFor;
  }

  public static enum Isolation {
    RR, RS, CS, UR
  }
}
